This is the first time Ive wrote a sex scene so I hope its ok 

-------------------------------------------------Kurt's jaw dropped, he couldn't believe how hot his co-star was in a nerdy way. His bowties were so cute. It wasn't till Adam elbowed him in the side that he realised he was staring.

“Hi, It's a pleasure to meet you, no pun intended..” Said Kurt

“Oh, the pleasure is all mine” Blaine replied bashfully.  His face going red.

“Since it's his first time on set, why don't you show him around  and help him get set up.” Said Sebastian.

Kurt grabbed Blaine's hand and lead him to the dressing room.

“This is where we'll get ready, hair and make-up, all that jazz. Also this will be where you'll have to get aroused so we can shoot the scenes, but there are people who can help, if needed.”

“Uh, no, I don't think that will be nesaceriy” Blaine replied.

"Ok, well i'm going to get ready, you should do the same. “ Kurt started 

stripping off his clothes and Blaine averted his gaze. Kurt chuckled.

“You can look, we're going to be fucking soon, it's Ok.”

Blaine still couldn't believe it, he was actually going to be having sex with his crush, in front of his boyfriend. 

“Won't your boyfriend, be jealous, while, he watches us, have sex.” Asked Blaine, while he was getting ready.

“Boyfriend? I don't have a boyfriend.” Said Kurt, looking confused. “Oh, did you mean Adam, No honey, Adam is my best friend. I don't have a boyfriend." Kurt replied.

Blaine couldn't help the goofy smile that came over him.

-------------------------------------------------

Blaine was reading a book, when he looked over at Kurt, who was sucking on a lollipop, moaning seductively.

Blaine, was growing hard.

“Why don't you come over here. I have a lollopop that need to be sucked on.”He said to kurt while grabbing his dick through  his jeans.

Kurt threw him a dirty look.

"But babe, it tastes so good, its the best thing Ive ever had in my mouth." Kurt teased.

Blaine snatches the lollipop out of Kurts mouth and crashed his lips to Kurts. They both moaned, it was like somebody had shot electricity throught out their bodies.

 Blaine began to kiss down Kurts neck as he tore, Kurts shirt off his body. He pushed kurt to lie flat on his back as he inserted the lollipop into his mouth 

"Suck" he demanded as he took his jeans off, he turned him over and caressed his ass and admiring how smooth his skin was, he spanked it, Kurt moaned at the unexpected hit. Blaine loved how the pale skin was turning a light pink.

"Im going to fuck you, until, you admit how much you love my cock."

He spanked Kurt again and roughly thrusted two fingers into his hole and slowly fingered him, massaging his prostate with every thrust of his fingers until Kurt was panting, he added another finger, scissoring them until he deemed Kurt ready to be fucked. 

Blaine positioned Kurt on his hands and knees as he slowly thrusted into Kurt teasing him as he rubbed up against his bundle of nerves.

"Oh My God, fuck me, please" kurt begged

But blaine wasnt satisfied, he caressed Kurts back as he kissed up the side of his neck, Kurt turned his head and smashed his lips against Blaines, panting into his mouth.

"Please, Blaine, dont tease."

Blaine starts to fuck into Kurt harder and harder until Kurt was a panting mess, babbling nonsense.

"Ple- please, uh, uh Blaine" kurt moaned, hearing their skin smacking together repeatedly. 

"I love you cock" Kurt admitted 

"It feels so good" kurt said as his arms gave way and he fell face first onto the bed, he turned his head to the side, moaning softly.

"Please" he begged. Blaine snaked his arms around kurt and started to jerk him off as kurt turned his head and passionately kissed Blaine as he came all of his hand.

Blaine pulled out of kurt, much to his disappointment and turned Kurt over, he placed his knees over Kurts shoulders and jerked himself over onto Kurts face and tongue. Kurt licked blaine clean and used his fingers to catch all the cum on his face and sucked his fingers into his mouth, moaning at the taste.

"Even better than a lollipop."

As Adam watched the scene unfold, he knew he had to get them together, they would be so cute together, Klaine would be their porn couple name. Adam smiled at himself, operation klaine is his mission.